Gold(I) mediated rearrangement of [7]-helicene to give a benzo[cd]pyrenium cation embedded in a chiral framework
Raphael J F Berger1, Matthew J Fuchter, Ingo Krossing
1Chemistry of Materials, Hellbrunnerstr. 34, Paris Lodron-Universität Salzburg, A-5020 Salzburg, Austria.
Abstract:
The facile gold-mediated skeletal rearrangement of [7]-helicene into a cationic polyaromatic hydrocarbon is described. We report in-depth studies on the structure and aromaticity of this novel stable cation and propose a mechanism for its formation.
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